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            <h2 class="title" style="clear: both"><a id="set_blob_dir"></a>DB-&gt;set_ext_file_dir()</h2>
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      <pre class="programlisting">#include &lt;db.h&gt;

int
DB-&gt;set_ext_file_dir(DB *db, const char *dir);  </pre>
      <p>
         The <code class="methodname">DB-&gt;set_ext_file_dir()</code> method sets the
         directory where external file data is stored. Use this method if the
         database is not opened within an encompassing environment. If an
         environment is in use, use <a class="xref" href="envset_blob_dir.html" title="DB_ENV-&gt;set_ext_file_dir()">DB_ENV-&gt;set_ext_file_dir()</a> instead.
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         By default, if this method is not called then external file data is
         placed in a directory local to the current working directory.
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      <p>
         Use <a class="xref" href="get_blob_dir.html" title="DB-&gt;get_ext_file_dir()">DB-&gt;get_ext_file_dir()</a> to identify the current storage location used
         for external file data.
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      <p>
        This method configures operations performed using the specified
        <a class="link" href="db.html" title="Chapter 2.  The DB Handle">DB</a>  handle, not all operations
        performed on the underlying database.
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      <p>
         This method may not be called after <a class="xref" href="dbopen.html" title="DB-&gt;open()">DB-&gt;open()</a> is called.
     </p>
      <p>
         Unless otherwise specified, the
         <code class="methodname">DB-&gt;set_ext_file_dir()</code> <span>
            <span>
                  method returns a non-zero error value on failure and 0 on success.
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              <h3 class="title"><a id="idm140711171890128"></a>Parameters</h3>
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                <h4 class="title"><a id="idm140711171932544"></a>dir</h4>
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          <p>
                 Provides the name of the directory where external file data is
                 to be stored. If an absolute path is not provided, then the
                 directory identified here is relative to the current
                 working directory.
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              <h3 class="title"><a id="idm140711171866832"></a>Errors</h3>
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        <p>
             The <code class="methodname">DB-&gt;set_ext_file_dir()</code> <span>
            <span>
                 method may fail and return one of the following non-zero errors:
            </span>
            
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        <div class="sect3" lang="en" xml:lang="en">
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                <h4 class="title"><a id="idm140711171880624"></a>EINVAL</h4>
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                If the database was opened within a named environment; or
                if the method was called after <a class="xref" href="dbopen.html" title="DB-&gt;open()">DB-&gt;open()</a> was called; or if
                an invalid parameter was specified.
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              <h3 class="title"><a id="idm140711171856128"></a>Class</h3>
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            <a class="link" href="db.html" title="Chapter 2.  The DB Handle">DB</a>  
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              <h3 class="title"><a id="idm140711171853152"></a>See Also</h3>
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             <a class="xref" href="blob.html#bloblist" title="External Files and Related Methods">External Files and Related Methods</a> 
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